US2939110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Comparing device for employment in a record card collator or like machine
Assignee: International Business Machines Corp
•
Filing: 1954-02-04
•
Granted: 1960-05-31
•
Expires: 1974-02-04
Abstract
No abstract record available.
Inventors
- 👤 Horace S Beattie
- 👤 Ralph E Page
- 👤 Ralph L Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:22
CPC Classifications
G; G11; G11C; G11C13/00; G11C13/04; G11C13/06; G06; G06F; G06F7/00; G06F7/02; G06F7/026; G06F7/06; G06K; G06K7/00; G06K7/10; G06K7/10544; G06K7/10821; G06K7/1093; G11C11/00; G11C11/21; G11C11/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2514054A
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US2712898A
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US2660372A
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US2673032A
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US2628346A
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US2680239A
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US2737646A
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US2776418A
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US2679638A
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US2785856A
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US2821696A
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US2702380A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |